Question

please solve both of them step by step and let me know of the answer..thank you​

Answer 1

1.

$( \frac{ {3}^{ - 7} }{ {3}^{ - 10} } ) \times {3}^{ - 5} \\ = ({3}^{ - 7 + 10} ) \times {3}^{ - 5} \\ = {3}^{3} \times {3}^{ - 5} \\ = {3}^{ - 2} \\ = \frac{1}{ {3}^{2} } = \frac{1}{9}$

2.

$( \frac{ {3}^{ - 1} }{ {4}^{ - 1} } ) ^{2} \\ = ( \frac{4}{3} ) ^{2} \\ = \frac{16}{9}$

Answer 2

Answer:

here is the answer

see the above pic